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Translation - Japanese: USB Type-Cアプリケーション用ケーブルの最大の長さ – KBA204034 - Community Translated (JA)

Question:

What is the maximum length of cables that can be used in Type-C applications?

Answer:

The USB Type-C specification provides the appropriate length for all types of USB Type-C cable assemblies based on cable performance requirements. Always use USB-IF certified cables for the required performance.

The following tables provide the recommended length for each Type-C standard assembly.

USB Type-C Standard Cable Assemblies

Connector type	USB Version	Cable length	Current Rating	USB Power Delivery USB-PD 2.0	USB Type-C Electronically marked
Type-C to Type-C	USB 2.0	< 4m	3 A	Supported	Optional
			5A		Required
Type-C to Type-C	USB 3.1 Gen1	≤ 2 m	3 A	Supported	Required
			5A		Required
Type-C to Type-C	USB 3.1 Gen2	≤ 1 m	3 A	Supported	Required
			5 A		Required

USB Type-C Legacy Cable Assemblies

Connector type	USB Version	Cable length	Current Rating	USB Type-C Electronically marked
USB Standard A to USB Type-C	USB 2.0	< 4m	3 A	Optional
USB PD Standard-A to USB Type- C			5 A	Required
USB Standard-A to USB Full-Featured Type-C	USB 3.1 Gen2	≤ 1 m	3A	Optional
USB PD Standard-A to USB Full-Featured Type-C			5A	Required
USB Type-C to USB Standard-B	USB 2.0	< 4m	3 A	Optional
USB Type-C to USB PD Standard-B			5A	Required
USB Full-Featured Type-C to USB Standard-B	USB 3.1 Gen2	< 1m	3 A	Optional
USB Full-Featured Type-C to USB  PD Standard-B			5 A	Required
USB  Type-C to USB Mini-B	USB 2.0	< 4m	500 mA	Optional
USB  Type-C to USB PD Micro-B	USB 2.0	< 2 m	3 A	Optional
USB Full-Featured Type-C to USB PD Micro-B	USB 3.1 Gen2	< 1m	3A	Optional

USB Type-C Legacy Adapter Assemblies

Connector type	USB Version	Cable length	Current Rating	USB Legacy Receptacle Type	USB Type-C Electronically marked
USB Type-C to USB Micro-B	USB 2.0	< 0.15 m	3 A	PD Receptacle Not Allowed	Optional
USB Full-Featured Type-C to USB Standard-A	USB 3.1 Gen1	< 0.15 m	3 A	PD Receptacle Not Allowed	Optional

The information in the tables is derived from the USB Type-C specification. Refer to section 3.1 of the USB Type-C specification for more details.